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////////////////////////////////////////////////////////////////////////////////////////
//
// Nestopia - NES/Famicom emulator written in C++
//
// Copyright (C) 2003-2008 Martin Freij
//
// This file is part of Nestopia.
//
// Nestopia is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// Nestopia is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Nestopia; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
////////////////////////////////////////////////////////////////////////////////////////
#include "NstBoard.hpp"
#include "../NstDipSwitches.hpp"
#include "../NstLog.hpp"
#include "NstBoardFb.hpp"
namespace Nes
{
namespace Core
{
namespace Boards
{
#ifdef NST_MSVC_OPTIMIZE
#pragma optimize("s", on)
#endif
Fb::Fb(const Context& c)
: Board(c), cartSwitch(wrk) {}
void Fb::SubReset(const bool hard)
{
cartSwitch.Reset( hard );
switch (board.GetWram())
{
case SIZE_8K:
Map( 0x6000U, 0x7FFFU, &Fb::Peek_Wrk_6, &Fb::Poke_Wrk_6 );
break;
case SIZE_4K:
Map( 0x6000U, 0x7000U, &Fb::Peek_Wrk_6, &Fb::Poke_Wrk_6 );
break;
case SIZE_2K:
Map( 0x7000U, 0x7800U, &Fb::Peek_Wrk_7, &Fb::Poke_Wrk_7 );
break;
}
}
void Fb::Sync(Event event,Input::Controllers* controllers)
{
if (event == EVENT_POWER_OFF)
cartSwitch.Flush();
Board::Sync( event, controllers );
}
Fb::Device Fb::QueryDevice(DeviceType type)
{
if (type == DEVICE_DIP_SWITCHES)
return &cartSwitch;
else
return Board::QueryDevice( type );
}
Fb::CartSwitch::CartSwitch(Wrk& w)
: wrk(w), init(true) {}
void Fb::CartSwitch::Reset(bool hard)
{
if (init)
{
init = false;
}
else if (hard)
{
Flush();
}
}
void Fb::CartSwitch::Flush() const
{
if (wrk.Source().Writable())
{
wrk.Source().Fill( 0x00 );
Log::Flush( "Fb: battery-switch OFF, discarding W-RAM.." NST_LINEBREAK );
}
}
uint Fb::CartSwitch::NumDips() const
{
return 1;
}
uint Fb::CartSwitch::NumValues(uint) const
{
return 2;
}
cstring Fb::CartSwitch::GetDipName(uint) const
{
return "Backup Switch";
}
cstring Fb::CartSwitch::GetValueName(uint,uint value) const
{
NST_ASSERT( value < 2 );
return value == 0 ? "Off" : "On";
}
uint Fb::CartSwitch::GetValue(uint) const
{
return wrk.Source().Writable() ? 0 : 1;
}
void Fb::CartSwitch::SetValue(uint,uint value)
{
NST_ASSERT( value < 2 );
wrk.Source().SetSecurity( true, !value );
}
#ifdef NST_MSVC_OPTIMIZE
#pragma optimize("", on)
#endif
NES_POKE_AD(Fb,Wrk_6)
{
NST_VERIFY( wrk.Writable(0) );
if (wrk.Writable(0))
wrk[0][address - 0x6000] = data;
}
NES_PEEK_A(Fb,Wrk_6)
{
return wrk[0][address - 0x6000];
}
NES_POKE_AD(Fb,Wrk_7)
{
NST_VERIFY( wrk.Writable(0) );
if (wrk.Writable(0))
wrk[0][address - 0x7000] = data;
}
NES_PEEK_A(Fb,Wrk_7)
{
return wrk[0][address - 0x7000];
}
}
}
}
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